Hollywood actor Robert Downey Jr endured a bizarre moment at his 40th birthday party, when one of his pals sent him a gorilla singing telegram.

The former ALLY McBEAL star welcomed his big day on 4 April (05) by hosting a party in Malibu, California, and he was left far from impressed with a gift from one of his pals.

He says, "My friend couldn't make it and he sent a gorilla singing telegram. That was emotional.

"You know the guy's just had like nine events and he smelled like a kid had gacked on his suit. It was awful."